Lifting-jack, clamp, and wire-stretcher.



No. 823,149. PATENTED JUNE 12, 1906. A. J. WHITE. LIPTING- JACK, CLAMP,AND WIRE STRETOHER.

APPLICATION FILED SEPTJB, 1906.

we M m m w W a e D M A 00 Q vi/bvmooa 40. w

UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented June 12, 1906.

Application filed September 18, 1905. Serial No. 279,038.

To all whom it may concern.-

Be it known that 1, ANDREW JOHNSON WHITE, a citizen of the UnitedStates, residing at Mertens, in the county of Hill and State of Texas,have invented certain new and useful Improvements in a CombinationLifting-Jack, Clamp, and Wire-Stretcher and I do declare the followingto be a full, clear,

and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

My invention is an improved combination lifting-jack, clamping device,and wirestretcher and it consists in certain novel features ofconstruction, combination, and ar rangement of devices hereinafterdescribed and claimed.

The object of the invention is to improve and simplify the constructionand operation of devices of this character, and thereby render the samemore durable, convenient, and eflicient.

The above and other objects, which will appear as the nature of theinvention is better understood, are accomplished. bymeans of theconstruction illustrated in the accompanying drawings, in which- Figure1 is a perspective view of my improved combination device. Fig. 2 is avertical sectional view through the same. Fig. 3 is a horizontalsectional view; and Fig. L is a detail elevation, partly in section,showing a portion of the standard, the loose sleeve, and the engagingportions of the two friction clutch members.

Referring to the drawings by numeral, 1 denotes my improved combinationliftingjack, clamp, and wire-stretcher, which comprises an upright orstandard 2, mounted upon a base 3. The latter is in the form of acircular band or ring to which are secured three legs 4, which projectfrom the lower end of the standard 1 adjacent to an annular stop-collaror sleeve 5. Upon the upper end or top of the standard 2 is screwed orotherwise secured, as shown at 6, a cross-head 7. The latter has one ofits ends 8 bent downwardly and tapered and bifurcated to form a claw, asclearly shown in Fig. 1. This claw 8 may be used to engage a plain orbarbed wire when the device is used as a wirestretcher and for variousother purposes. The opposite end 9 of the head 7 projects outwardly atright angles to the standard 2 and forms the stationary member of aclamp.

The other or movable member of said clamp is formed by a frame 10, whichis slidably mounted upon the standard 2 and which constitutes themovable head of a lifting-jack. This frame 10 com rises two frictionclutch members 11 12, wliich are apertured to receive the standard 2 andwhich are spaced apart by a loose sleeve 13, surrounding and slidableupon said standard. The apertures or openings 14 in said clutch membersthrough which the standard projects are of slightly greater diameterthan that of the standard, so that the latter have a slight tiltingmovement upon said standard to cause them to frictionally engage thesame, and thereby hold the frame 10 when adjusted. The lower clutchmember 12 has a projecting portion 14, which is pivoted, as shown at 15,between the bifurcated end 16 of a hand-lever 17. Said lever has itsbifurcated end 16 enlarged at its inner portion to surround the clutchmember 12, and in its outer portion is pivoted, as shown at 18, a link19, which has its upper end bifurcated and pivoted, as at 20, to one end21 of the upper clutch member 11. Said end 21 of the clutch member formsthe movable clamp member which coacts' with the stationary clamp member9 and has upon its outer end a pivoted hook 22, which is in the form ofa claw adapted to engage barbed wire or the like. The opposite end 23 ofthe upper clutch member 11 is in the form of a tapered spur which may beused for various purposes and which is adapted to be engaged by a loopor bail 24, pivoted upon the handle end 25 of the lever 17. In order toforce the clutch members 11 12 to their angular position, (shown in thedrawings,) and thereby retain them at any adjusted position upon thestandard 2, I preferably provide a coil-spring 26 upon a pin 27 betweenthe arms of the bifurcated end 16 of the lever and engage one of theends of said spring with the projection 14 of the clutch member 12 andthe opposite end of said spring with the lower end of the link 19.

The many uses and advantages of the invention will be readily understoodupon reference to the drawings. It will be seen that when used as alifting-jack or a wire-stretcher the load is upon the outer end of theportion 21 of the clutch member 11 or upon the claw 22, pivoted uponsaid end, so that when the lever 17 is oscillated the frame 10 will beelevated by a step-by-step movement, one of said clutch members 11 12serving to bite the standard and prevent the downward move ment of theframe, while the other advances upon said standard, as will be readilyunderstood upon reference to Figs. 1 and 2 of the drawings, in which thetwo positions of the clutch members are respectively shown. When thelink 24 is engaged with the end 23 of the clutch member 21, said clutchmembers will be held in substantially parallel relation, so that theframe 10 may be readily moved upwardly or downwardly upon the standard.As soon as the said link is disengaged from the end 28 the spring 26will force the clutch members to their angular position and locktheframe upon said standard. When the device is used as a clamp, theframe 10 is turned upon the standard, so that when the end 21 of theclutch member 1 1 alines with the end 9 of the head 7 an object of anydescription may be clamped between them. The device may be used'forvarious other purposes than those herein mentioned, as will be readilyunderstood.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to Without departing from the principle orsacrificing any of the advantages of this invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A device of the character described comprising a standard, a frameadjustable upon said standard and consisting of two clutch membersformed with apertures of greater size than said standard, to permit saidmembers to have a tiltin movement, a spacingsleeve upon said standard,between said members, a lever having a bifurcated end pivoted upon thelower clutch member, a link con necting said lever to the upper clutchmember, and a spring upon the bifurcated end of said lever having oneend engaged with said lower clutch member and its other end with saidlink, substantially as described.

2. A device of the character described comprising a standard, a frameadjustable upon said standard and consisting of two clutch membersformed with apertures of greater size than said standard, to permit saidmembers to tilt slightly, a spacing-sleeve upon said standard betweensaid members, a lever having a bifurcated end pivoted upon the lowerclutch member, a link connecting said lever to the upper clutch member,a spring for forcing said clutch members to their angular position, andmeans upon said lever for locking the same to said upper clutch membersto slightly tilt thereon,a spacing-sleeve upon said standard, betweensaid members, a lever having a bifurcated end pivoted upon the lowerclutch member, a link connecting said lever to the upper clutch member,a spring for forcing said clutch members to their angular position,means upon said lever for locking the same to said upper clutch member,to hold the latter in substantially parallel relation with said lowerclutch member, a fixed head upon the upper end of said standard, and abase u on the lower end of said standard, substantlally as described.

4. Adevice of the character described com prising a standard, anadjustable frame slidble thereon and consisting of upper and lowerfriction clutch members formed with apertures to receive said standard,said apertures being of slightly greater size than said standard, topermit said members to tilt thereon, a lever pivoted to the lower clutchmember, a link connecting said lever to the upper clutch member, meansfor forcing said clutch members to their angular position, and a linkupon said lever adapted to enga e said upper clutch member, to hold saidclutch members in substantially parallel relation, substantially asdescribed.

5. A device of the character described comprising a standard having atone end a transverselyprojecting head, and a sliding frame adjustable'upon said standard, said frame being adapted to serve as a lifting-jackand as the movable member of a clamp, the stationary member of whichlatter being formed by said head 6. A combination lifting-jack, clampand wire-stretcher, comprising a standard having a base at one end and astationary head at its opposite end, and a sliding frame adjustable uponsaid standard and having a portion adapted to serve as the movablemember of a lifting-jack, a clamp and a wire-stretcher, substantially asdescribed.

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit- IIGSSGS.

ANDREW J. WHITE. Witnesses:

M. P. HoLLINeswoRrH, E. H. TEKELL.

